Lucy is10 years old. He is to go to school.A. young enoughB. enough oldC. old enoughD. eno

问题补充：

Lucy is10 years old. He is to go to school.

A. young enough

B. enough old

C. old enough

D. enough young

答案：

A. young enough

B. enough old

(答案→)C. old enough

D. enough young

解析：根据前一句，enough 修饰形容词位于其后，故选答案为C